Sample-Id: 00000611-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: [email protected]
---
libavcodec/proresdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/proresdec.c b/libavcodec/proresdec.c
index c65d729..144fa26 100644
--- a/libavcodec/proresdec.c
+++ b/libavcodec/proresdec.c
@@ -393,12 +393,16 @@ static inline int decode_ac_coeffs(GetBitContext *gb,
int16_t *out,
return 0;
run = decode_vlc_codeword(gb, ff_prores_ac_codebook[run_cb_index]);
+ if (run < 0)
+ return AVERROR_INVALIDDATA;
bits_left = get_bits_left(gb);
if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left)))
return AVERROR_INVALIDDATA;
level = decode_vlc_codeword(gb, ff_prores_ac_codebook[lev_cb_index]) +
1;
+ if (level < 0)
+ return AVERROR_INVALIDDATA;
pos += run + 1;
if (pos >= max_coeffs)
--
1.8.3.2
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